Jade JMRH Series Service Manual Download Page 4

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REVIEW COPY 7

SM-4

Jade Range LLC

– A Middleby Company

Titan

Series Heavy Duty Range

Model Series JTRH, JMRH & JTRHE

TABLE OF CONTENTS

GENERAL ...................................................................................................................................................... 6

INSTALLATION ...................................................................................................................................... 6

OPERATION ........................................................................................................................................... 6

CLEANING .............................................................................................................................................. 6

TOOLS .................................................................................................................................................... 6

Standard ........................................................................................................................................... 6

Special .............................................................................................................................................. 6

JTRH GAS / BTU / BURNER SPECIFICATIONS ................................................................................ 7

REMOVAL AND REPLACEMENT OF PARTS ............................................................................................ 8

COMPONENT LOCATOR, EXTERIOR ................................................................................................. 8

COMPONENT LOCATOR, MANIFOLD ................................................................................................ 9

COMPONENT FUNCTION .................................................................................................................... 9

ELECTRICAL LOCKOUT/TAGOUT PROCEDURE ........................................................................... 10

GAS LOCKOUT/TAGOUT PROCEDURE .......................................................................................... 10

Gas Leak Test ................................................................................................................................ 10

COVERS AND PANELS ....................................................................................................................... 11

Manifold Cover, Top Section ......................................................................................................... 11

Convection Oven Control Panel .................................................................................................... 11

Oven Door ...................................................................................................................................... 11

Oven Kick Panel ............................................................................................................................. 12

COMPONENT REMOVAL .................................................................................................................... 12

Top Section Open Burner and Orifices ........................................................................................ 12

Top Section Valves: Burner, Oven Shut-off, and Pilot ................................................................ 13

Pilot Valves: Top Section Burners .............................................................................................. 13

Burner Valves: Top Section Burners ........................................................................................... 13

Oven Shut-Off Valves .................................................................................................................... 14

Fan Motor Switches and Indicator Light ....................................................................................... 14

Oven Door Switch .......................................................................................................................... 15

Thermostat and Thermocouple ..................................................................................................... 16

Oven Pilot Control Valve with Dropout of 20 - 30+ Seconds........................................................ 16

Ignition Module ............................................................................................................................... 17

Oven Pilot Assembly /Thermocouple ............................................................................................ 18

Oven Burner Gas Orifice ............................................................................................................... 18

Oven Burner Assembly .................................................................................................................. 19

Oven Timer ..................................................................................................................................... 19

Motor and Blower Assembly .......................................................................................................... 20

Summary of Contents for JMRH Series

Page 1: ...MENT IS BUILT TO COMPLY WITH APPLICABLE STANDARDS FOR MANUFACTURERS INCLUDED AMONG THOSE APPROVALAGENCIES ARE UL A G A CSA ETL AND OTHERS Service Manual RETAIN THIS MANUAL FOR FUTURE REFERENCE Manual...

Page 2: ...ed professional Gas connections must comply with the applicable portions of the National Gas Code and or all local gas codes Failure to comply with this procedure can cause property damage injury or d...

Page 3: ...ways follow the Gas LOCKOUT TAGOUT Procedure Failure to comply can cause property damage injury or death WARNING Do not operate this equipment without properly placing and securing all covers and acce...

Page 4: ...ak Test 10 COVERS AND PANELS 11 Manifold Cover Top Section 11 Convection Oven Control Panel 11 Oven Door 11 Oven Kick Panel 12 COMPONENT REMOVAL 12 Top Section Open Burner and Orifices 12 Top Section...

Page 5: ...23 TOP BURNER ADJUSTMENT 24 OVEN BURNER ADJUSTMENT 24 OVEN THERMOSTAT ADJUSTMENT 25 Oven Thermostat Test and Calibration 25 GRIDDLE THERMOSTAT TEST AND CALIBRATION 26 IGNITION MODULE CIRCUIT CHECK 27...

Page 6: ...es listed on the cover page Procedures in this manual apply to all models unless specified otherwise Pictures and illustrations apply to all models unless specified otherwise INSTALLATION Refer to the...

Page 7: ...21400000 Plancha 2 Piece lift off Hex Head 3000010836 15K 46 4622200000 56 4621200000 Plancha Tubular U burner 2500045000 20K 46 4622200000 55 4621100000 Char Broiler Straight tubular burner 121060000...

Page 8: ...UST BE OFF O F F WARNING TURN OFF ELECTRIC GAS TO APPLICNCE BEFORE SERVICING ALL CONTROLS MINUTES 10 15 20 25 30 35 40 45 50 55 60 5 0 Figure 1 Component Locator Exterior A Burner Grates B Burner Cont...

Page 9: ...svoltagetoflowfromthedoorswitchtothemotor Themotorshouldoperatewiththedooropenwhenthe blower switch is in the manual position Orifice Each burner is supplied with gas through an orifice Pressure Regul...

Page 10: ...PROCEDURE FAILURE TO COMPLY CAN CAUSE PROPERTY DAMAGE INJURY OR DEATH The Gas LOCKOUT TAGOUT Procedure is used to protect personnel working on a gas equipment Before performing any maintenance or ser...

Page 11: ...Control Knob B Power ON OFF Switch C Power ON Indicator Light D Blower AUTO OFF MANUAL Switch E Retaining Screw F Timer G Gas ON OFF Valve for Oven WARNING PERFORM THE ELECTRICAL LOCKOUT TAGOUT PROCED...

Page 12: ...lease tabs from retaining slots and pull out to remove 2 To install the oven kick panel insert tabs into hinge J Hook slots and slide panel towards bottom of range COMPONENT REMOVAL Top Section Open B...

Page 13: ...as per COVERS AND PANELS 4 Remove pilot line s from valve 5 Remove pilot valve 6 Reverse procedure to install valve Burner Valves Top Section Burners WARNING PERFORM THE ELECTRICAL LOCKOUT TAGOUT PROC...

Page 14: ...t Off Valve B Gas Line to Burner 1 Shut off all electrical controls and perform the Electrical LOCKOUT TAGOUT procedure WARNING PERFORM THE GAS LOCKOUT TAGOUT PROCEDURE 2 Shut off all gas controls and...

Page 15: ...style A Oven Door Switch B Retaining Screws C Switch Contact Arm D Oven Door Switch Bracket Figure 14 Oven Door Switch New style A Oven Door Switch B Retaining Screws C Switch Contact Arm D Oven Door...

Page 16: ...ocedure 3 Remove oven control panel as described under COVERS AND PANELS 4 Unbolt switch panel assembly from thermostat 5 Remove screws from oven door switch bracket and remove bracket 6 Disconnect fl...

Page 17: ...ve assembly 7 Reverse the procedure to install control valve Ignition Module Figure 17 Ignition Module Old style A Ignition Module B Door Switch C Door Switch Bracket Figure 18 Ignition Module New sty...

Page 18: ...ermocouple from the pilot assembly NOTE Standard Oven has Locknuts and Convection Oven has Tinnerman Clip 6 Remove hold down screw and remove pilot assembly 7 Reverse the procedure to install pilot as...

Page 19: ...burner gas line and orifice elbow as described under OVEN BURNER GAS NOZZLE 5 Lift up front of burner assembly and remove through opening in firewall 6 Reverse the procedure to install burner Oven Tim...

Page 20: ...OUT procedure WARNING PERFORM THE GAS LOCKOUT TAGOUT PROCEDURE 2 Shut off all gas controls and perform the Gas LOCKOUT TAGOUT procedure 3 Remove oven racks and rack supports from inside oven cavity 4...

Page 21: ...fold A Pressure Tap Plug B Manifold NOTE Before adjusting the regulator verify proper incoming line pressure WARNING PERFORM THE ELECTRICAL LOCKOUT TAGOUT PROCEDURE 1 Shut off all electrical controls...

Page 22: ...the gas equipment on that supply line and take a reading At no time should pressure drop more than 0 5 W C If pressure drop is greater than 0 5 W C go to the next step 8 Turn off all the gas valves A...

Page 23: ...y of the burners depends upon a delicate balance between the air supply and the volume of gas When this balance is disturbed poor operating characteristics and excessive gas consumption will occur An...

Page 24: ...C Manifold 1 Remove manifold cover as described in COVERS and PANELS 2 Loosen the screw on the air shutter 3 Light the burners and observe the quality of the flame 4 Adjust the air shutter as per AIR...

Page 25: ...hat is away from direct flame and or working or cleaning areas Oven Thermostat Test and Calibration Figure 31 Oven Thermostat Test and Calibration A Calibration Plate Screws B Calibration Plate C Bypa...

Page 26: ...reep if the griddle is left idling no product on the griddle a minimum of 50 F an hour Therefore it is imperative that the bypass flame be set correctly CAUTION If the bypass flame is not correct the...

Page 27: ...mperature reading 15 If the temperature is still more than 25 F different from the dial setting the thermostat may need to be replaced 16 Turn off the thermostat so as not to cause false readings on t...

Page 28: ...replace the module and retest 7 Inspect the pilot igniter according to INSPECT AND ADJUST THE PILOT IGNITER If no problem was found go to the next step If there is no or intermittent continuity repai...

Page 29: ...er contact 9 If either contact fails to switch from open to closed normally open contact or fails to switch from closed to open normally closed contact replace the switch 10 Reverse steps to install s...

Page 30: ...VAC If no power there is an open circuit between the motor and switch Refer to schematic and troubleshoot the cause If wiring looks OK and there is power make sure the neutral side of the circuit is...

Page 31: ...ty valve to remain open and gas flows into oven burner through the nozzle and orifice 4 Pilot light ignites gas and oven begins to bake SEQUENCE OF OPERATION CONVECTION OVEN 1 Oven gas shut off valve...

Page 32: ...SM 32 Jade Range LLC A Middleby Company TitanTM Series Heavy Duty Range Model Series JTRH JMRH JTRHE REVIEW COPY 7 CONVECTION OVEN WIRING DIAGRAM Figure 38 Convection Oven Wiring Diagram...

Page 33: ...pass flame Align door and check for obstructions Verify orifice size for gas type and replace as needed Test for gas pressure and supply pipe sizes Clear obstructions from pressure regulator or replac...

Page 34: ...o air ratio incorrect Burner obstructed Thermostat is out of calibration or by pass flame is too high Vent in pressure regulator blocked Wrong dial on thermostat REMEDY Adjust temperature and or cooki...

Page 35: ...ressure incorrect Vent in pressure regulator blocked Gas to air ratio incorrect REMEDY Check and level range Verify orifice size for gas type and replace Perform air shutter adjustment Clean all burne...

Page 36: ...short Capacitor failed Door switch failed Blower AUTO ON switch failed Motor mounting is loose Fan loose on shaft Motor bearings defective Motor malfunction Blower contacting the cover REMEDY Clean al...

Page 37: ...Poor combustion in burner Burner not completely lighting Loose or broken gas line Leak in gas line or fitting Pressure regulator ruptured REMEDY Check and light pilot lights Slide burner on to orific...

Page 38: ...e equipment is installed operated and maintained as follows 1 Installed in accordance with all local codes or in the absence of local codes with the current National Fuel Gas Code ANSI Z223 1 Latest A...

Page 39: ...emicals or direct contact to infrared burners is not covered Exclusions JSB and JCM units mounted over open broilers are warranted for a period of Thirty 30 days from date of original installation Con...

Page 40: ...SM 40 Jade Range LLC A Middleby Company TitanTM Series Heavy Duty Range Model Series JTRH JMRH JTRHE REVIEW COPY 7 Printed in U S A...

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